OK. When your Norton runs out, you can get Avast or Antivir for free.
And Malwarebytes is also free.

And password protect your computer.

Where do you learn PFS?

From David Luna who was my room mate in Morristown Nj, he passed away and Hector Solis, who I fly out to train with. One of Guro Dan's guys teaches 100 miles from where I live, and I would train with him too if it wasn't for the fact he teaches on Saturdays. I don't do saturdays.